Improvement in car-axles



0. D. SPALDING Gar-Axle.

Pt tdD .1G,'l878m g/ a en e ec WITNESSES ATTORNEY N, FEYHS.FHOTO-LITHOGRAPHER. WASHINGTON. D C,

UNITED STATES PATENT FFIGE.

ORLANDO D. SPALDING, OF MITCHELL, IOl/VA, ASSIGNOR OFONE-HALF HIS RIGHTTO ROBERT W. BARNETT, OF SAME PLACE.

lM PROVEMENT IN CAR-AXLES.

Specification forming part of Letters Patent No. 210,814, dated December10, 1878; application filed November 2, 1878.

To all whom it may concern:

Be it known that I, ORLANDO D. SPALDING,

of Mitchell, in the county of Mitchell and State of Iowa, have inventeda new and valuable Improvement in Car Thesis and Axles; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being bad to theannexed drawings, making a partof this specification, and to the lettersand figures of reference marked thereon.

Figure 1 of the drawings is a representation of a bottom View of myimproved truck. Fig. 2 is a longitudinal section of the axle and sleeve.Fig. 3 is a detailview of the axle-box, anti'friction rollers, and axlein section; and Fig. 4. is a section of a car-axle, showing amodification.

This invention has relation to improvements in railway-car trucks.

The object of the invention is, mainly, to provide a cheap and reliablemeans whereby the wheels on each side of a truck will be allowed to workindependently of each other and of those on the other side of saidtruck, thereby preventing the slipping of the carwheels and the twistingof the axle.

The nature of the invention consists in combining with a tubular sleeve,having bearings at its ends and at each side of the center of itslength, independent axle-sections included in said sleeve and rotatingon said bearings, and chamberedpedestals, having anti-friction rollerstherein, that attord rolling bearings to the journals of the axle-arms,as will be hereinafter more fully explained.

In the annexed drawings, the letter A desi gnates a railway-car body,and B the pedestals depending therefrom and affording bearin gs to thespindles of a railwayear axle, O. This axle is composed of two sections,a, a, inclosed within a metallic sleeve, 1), and having each atransporting-wheel, E, applied thereon in the usual manner. Theaxle-sections revolve independently of each other upon the annularbearings i i, arranged inside of the sleeve, the ones in close proximityto the wheels, and the others near the ends of the said axle-sections.When this construction obtains, the sleeve will be made in one piece andextend from wheel to wheel; but, if I so elect, I may form the sleeve intwo sections, having at their inner ends the flanges b, by means ofwhich and suitable through-bolts b the said sleeve-sections are rigidlyconnected together. These sections have at each end an enlarged chamber,0, in which are arranged'a sufficient number of rollers, (I, to afford arolling bearin g to the axle-sections a a. Usually the rollers arearranged in the chambers 0 around the axle, and confined therein bymeans of a screw-cap, c. In either case the adjacent ends of theaxle-sections will be kept apart by means of a stout bolt, f, the endsof which are loosely engaged in recesses in the ends of the saidsections.

The spindles or journals extend out beyond the wheels E to enter thechamber j of the pedestals B aforesaid. These chambers are cylindricalin section, and of sufficient size not only to admit the spindle Z, butalso a num ber of anti-friction rollers, is, arranged side by side, and,with the spindle, completely filling the said chamber, as shown in Fig.3. Rollin g bearings are thus afforded to the journals of the axles, bywhich friction is greatly lessened, and, as the axle-sections revolveindependently of each other, the wheels also rotate independently ofeach other, and in turnin g curves neither slip upon the track nor twistthe axle-trees, by which means all danger of causing fiat wheels isprevented, and of breaking the axle effectually obviated.

G indicates a strong pin, extending through the box of the pedestal andengaging a recess in the end of the journals. This pin is confined toits place by means of a set screw, extending through the walls of thebox and bearing with its end against the said pin. This pin is asubstitute for the collar on the end of the journal, and carries thestrain from the outside ends to the center of the axle, thus greatlyreducing the friction.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the sleeve D and the axle-sections a a,separated by a pin,f, of the pedestals B, anti-friction rollers is,recessed therein and afibrding bearings to the axle journals 1, the pinsG, and set-screw p, ar-

2 ninem ranged and operating substantially as speci ers 7c, pins G, andsetscrews 2, all arranged fied. vanrloperating substantially asspecified.

2. The combination, with the tubular sleeve In testimony that I claimthe above I have D, having bearings at its ends and at each sidehereunto subscribed. my. name in the presence of the center of itslength, of the axle-sections of two Witnesses. aa, included in saidsleeves and rotating independently on said bearings, the spacing-pinORLANDO DEMIS SPALDING' f, the transporting-wheels E, secured on theWitnesses: said axle-sections, the box-pedestals B, having J. A.WENTWORTH, chambers formed therein, the anti-friction roll- WILSONMARTIN.

